* questions about objcopy and ld
@ 2011-02-09 12:48 ali hagigat
2011-02-22 15:26 ` Nick Clifton
0 siblings, 1 reply; 2+ messages in thread
From: ali hagigat @ 2011-02-09 12:48 UTC (permalink / raw)
To: binutils
Does objcopy adds a final 0 to the outfile? I use it, it seems that
one byte is extra.
When we create some sections by ld, does the size of these sections
have to be a multiple of a number?(some sort of alignment) and what is
that number?
^ permalink raw reply [flat|nested] 2+ messages in thread
* Re: questions about objcopy and ld
2011-02-09 12:48 questions about objcopy and ld ali hagigat
@ 2011-02-22 15:26 ` Nick Clifton
0 siblings, 0 replies; 2+ messages in thread
From: Nick Clifton @ 2011-02-22 15:26 UTC (permalink / raw)
To: ali hagigat; +Cc: binutils
Hi Ali,
> Does objcopy adds a final 0 to the outfile? I use it, it seems that
> one byte is extra.
No. At least I do not see why it would. Do you have a specific example
that we could look at ?
> When we create some sections by ld, does the size of these sections
> have to be a multiple of a number?
It depends upon the section type and the target, but in general the
answer is yes.
> (some sort of alignment) and what is that number?
The alignment. The specific value for alignments varies with different
sections and different targets. When the linker creates an output
section it sets its alignment to largest alignment value of any of the
input section whose contents are being mapped into that output section.
Cheers
Nick
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2011-02-09 12:48 questions about objcopy and ld ali hagigat
2011-02-22 15:26 ` Nick Clifton
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